I don't know why the task force he was with from 2/43 to 11/43 doesn't have a number. However, because he was "Assigned...by Letter Headquarters Hawaiian Department" I'm inclined to think he was still in Hawaii at that time.
I've got to qualify what I said about Stanton not showing the 40th Division in New Guinea. He does not show them with campaign credit for New Guinea. However, his narrative shows them in New Guinea 18-20 Dec 44 enroute to the Philippines.
I'm also inclined to think he must have eaten the turtles and contracted the malaria "in the boonies". From the look of the record you have, I'm led to believe that must have happened some time while he was serving with the 40th Division.
My best guess would be contacting the division vet association in hope that you could find someone familiar with him, or the story. Contact info I found online is: 40th Infantry Division Assn Mr. Edward Lown 210 Highland Ave MaybrookNY12543-1012 (914) 42702320
Also, you will notice he was for a time the regimental chaplain for the 108th Infantry (one of the division rifle regiments). They also have a vet assn. Contact info found online is:
108th Infantry Assn Mr. Ricvahrd A Ruppert 16821 SW 79th Ct MiamiFL 33157-4715 (305) 378-2111
I think it is probably pretty much a long shot, but we'll hope one of these gentelmen can help. Good luck with your search.